class Person {
  String _name = "";
  num _age = 0;
  num _code = 00;
  Person({String name = '', num age = 0, num code = 0}) {
    this._age = age;
    this._code = code;
    this._name = name;
  }
  getPersonInfo() {
    return {"name": _name, "code": _code, "age": _age};
  }
}
